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Table 5 Responders’ characteristics and online response

From: Participation rates, response bias and response behaviours in the community survey of the Swiss Spinal Cord Injury Cohort Study (SwiSCI)

 

Model 1

Model 2

OR (95 % CI)

p

OR (95 % CI)

p

Sociodemographic characteristics

    

 Gender (Male)

Reference

<0.001

Reference

<0.001

  Female

0.47 (0.37 to 0.59)

 

0.47 (0.37 to 0.59)

 

 Age (per 10 years)

0.73 (0.68 to 0.78)

<0.001

0.70 (0.64 to 0.77)

<0.001

 Education (per year)

1.11 (1.08 to 1.15)

<0.001

1.07 (1.03 to 1.11)

<0.001

 Household income (per 1000 Swiss Francs)

1.17 (1.10 to 1.24)

<0.001

1.10 (1.03 to 1.18)

0.008

 Employment (Yes)

Reference

<0.001

Reference

0.300

  No

0.55 (0.44 to 0.68)

 

0.87 (0.66 to 1.14)

 

 Living arrangement (With others)

Reference

0.770

Reference

0.864

  Living alone

0.97 (0.77 to 1.22)

 

1.02 (0.73 to 1.44)

 

 Partnership (Having a partner)

Reference

0.997

Reference

0.600

  Not having a partner

1.00 (0.80 to 1.24)

 

0.92 (0.66 to 1.27)

 

 Language (German)

Reference

0.051

Reference

0.160

  French

0.76 (0.60 to 0.96)

 

0.76 (0.55 to 1.03)

 

  Italian

0.76 (0.46 to 1.25)

 

0.74 (0.39 to 1.38)

 

 Membership Swiss Paraplegic Association (Non-member)

Reference

<0.001

Reference

0.006

  Member

2.27 (1.84 to 2.97)

 

1.48 (1.12 to 1.96)

 

Lesion characteristics

    

 Lesion level (Paraplegia)

Reference

<0.001

Reference

<0.001

  Tetraplegia

1.94 (1.55 to 2.42)

 

1.63 (1.26 to 2.12)

 

 Extent of lesion (Complete)

Reference

<0.001

Reference

0.757

  Incomplete lesion

0.65 (0.53 to 0.80)

 

0.96 (0.75 to 1.24)

 

 Aetiology (Traumatic)

Reference

<0.001

Reference

0.978

  Non-traumatic

0.51 (0.39 to 0.66)

 

0.99 (0.73 to 1.36)

 

 Time since injury (per 10 years)

1.11 (1.02 to 1.20)

0.015

1.14 (1.03 to 1.26)

0.010

Health & functioning indicators

    

 Quality of life (0–4; per point)

1.30 (1.12 to 1.52)

<0.001

1.28 (1.05 to 1.56)

0.013

 Mental health (0–100; per 10 points)

0.98 (0.85 to 1.12)

0.734

0.89 (0.76 to 1.04)

0.147

 Secondary conditions (0–39; per 10 points)

1.05 (0.88 to 1.26)

0.561

1.04 (0.84 to 1.30)

0.709

 Participation (0–100; per 10 points)

0.93 (0.89 to 0.98)

0.003

0.85 (0.79 to 0.91)

<0.001

  1. Unadjusted and adjusted odds ratios (OR) and (95 % confidence intervals, CI) from binary logistic regression for online response in the second module. p values from Equal Fraction-Missing-Information (FMI) test. Results from analysis with multiple imputed datasets, n = 1533 (16 cases with telephone interviews were excluded). Model 1: unadjusted. Model 2: adjusted for all covariates
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BMC Medical Research Methodology

ISSN: 1471-2288

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